CN104153262B - A kind of equipment of portable accurate reparation subway bend Rail corrugation - Google Patents
A kind of equipment of portable accurate reparation subway bend Rail corrugation Download PDFInfo
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- CN104153262B CN104153262B CN201410328403.9A CN201410328403A CN104153262B CN 104153262 B CN104153262 B CN 104153262B CN 201410328403 A CN201410328403 A CN 201410328403A CN 104153262 B CN104153262 B CN 104153262B
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Abstract
The present invention relates to a kind of equipment of portable accurate reparation subway bend Rail corrugation, this equipment comprises the laser range sensor (9) detected subway bend Rail corrugation and the grinding subassembly (7) repaired, also comprise and drive grinding subassembly (7) respectively at driven unit and the Control Component of the motion of X-direction, Y direction and Z-direction, and the detachable frame of each building block of described equipment is installed.Compared with prior art, apparatus of the present invention can in-site installation, advanced by manual hand, initiatively subway bend Rail corrugation is accurately repaired for assigned address, in rail bend radius of curvature hour, accurately consider radial misalignments compensate, and can simply, repeatedly can carry out reshaping.Grinding subassembly can direction along ng a path and track move radially, and can accurately lifting moving, and abrasive wheel and track angle can adjust, have easy to use, efficiency is high, cost is low, precision advantages of higher.
Description
Technical field
The present invention relates to rail grinding technique field, particularly relate to the rail of subway bend corrugation recovery technique that a kind of radius of curvature is less.
Background technology
Rail is the carrier of all railway traveling equipment, and the quality of rail quality directly affects riding quality and the security of operation of traveling equipment.Due to dynamic action, the reason such as natural environment and the quality of rail own of train, Rail Surface easily produces the defects such as wearing and tearing, irregularity, wave, overlap, corrosion.These defects, shorten rail its shelf-life, add maintenance work amount and maintenance cost, affect vehicle operating quality and degree of passenger comfort, are even related to train operating safety.Domestic city track traffic adopts rail grinding machine, implements PLC (programmable logic controller) or computer control, to the polishing of circuit rail's end portion rolling surface, in order to eliminate rail surface defects, by rail head contour recovery to original design requirement.At present, grinding machine bistrique is more, and operation midway needs to change grinding stone, charging-up lubricant oil, also needs diesel oil of annotating after construction, and complex operation is complicated; Can produce a large amount of Mars during polishing, Che Shangxu is equipped with the water tank of fire fighting system and specified volume, and axle is heavy comparatively large, difficult; Expensive, running cost is high; Before polishing, preparation is heavy, and the polishing operation time is long, and pass is many, corrective maintenance task weight, and operating condition also requires harsh; For the quick grinding technology of rail bend reparation, there is no good solution, cannot solve in time for specifying the grinding of rail and noting abnormalities, accomplish to nip in the bud; When carrying out the less bend of radius of curvature and polishing, can not accurately consider that radial misalignments compensates.
Summary of the invention
Object of the present invention be exactly in order to overcome above-mentioned prior art exist defect and provide a kind of disassembling operations easy, can bend polishing repair, can radial misalignments compensate, operating efficiency is high, grinding precision is high, the equipment of installation and transportation portable accurate reparation subway bend Rail corrugation easily.
Object of the present invention can be achieved through the following technical solutions: a kind of equipment of portable accurate reparation subway bend Rail corrugation, it is characterized in that, this equipment comprises subway bend the Rail corrugation laser range sensor detected and the grinding subassembly repaired, also comprise and drive grinding subassembly respectively at the driven unit of X-direction, Y direction and Z-direction motion, and for installing the detachable frame of each building block; Be folded in by described equipment on subway bend rail, detect its degree of wear by laser range sensor, when wearing and tearing exceed setting value, driven unit drives grinding subassembly to be adjacent to subway bend rail, and moves back and forth reparation wearing and tearing along subway bend rail.
Described driven unit comprises X axis driven unit, Y-axis driven unit and Z-axis direction driven unit, wherein:
X axis driven unit comprises X-direction screw mandrel and motor, X-direction slide rail, X-direction slide block, described X-direction slide rail is arranged in frame, described X-direction slide block is arranged on X-direction slide rail, and described X-direction screw mandrel and motor drive X-direction slide block to seesaw in the X-axis direction along X-direction slide rail;
Y-axis driven unit comprises Y-axis positioner loaded plate, Y-axis retinue positioner, and described Y-axis retinue positioner is arranged on Y-axis positioner loaded plate, and described Y-axis retinue positioner moves along subway bend rail;
Z-axis direction driven unit comprises lead screw motor, motor supporting base, T-shaped junction plate, described lead screw motor and T-shaped junction plate are arranged on the upper and lower both sides of motor supporting base respectively, described motor supporting base is arranged on X-direction slide block, described Y-axis positioner loaded plate is arranged on T-shaped junction plate, described Y-axis positioner loaded plate connects a grinding subassembly loaded plate, and described grinding subassembly is arranged on grinding subassembly loaded plate; Described lead screw motor drives T-shaped junction plate to drive grinding subassembly to move up and down in the Z-axis direction; Described Y-axis retinue positioner drives grinding subassembly to move along the retinue of subway bend rail.
Described laser range sensor is arranged on Y-axis positioner loaded plate, and is positioned at Y-axis retinue positioner dead ahead.
Described X-direction screw mandrel and motor connect X-direction slide block by a small slide block.
Described T-shaped junction plate is provided with the small slide block be connected with the screw mandrel of lead screw motor, and the Y direction slide rail be connected with Y-axis positioner loaded plate.
Described Y-axis positioner loaded plate is provided with chute, is slidably connected with the Y direction slide rail be arranged on T-shaped junction plate.
Described Y-axis retinue positioner comprises the cylinder that two are close to track side surfaces.
Described grinding subassembly comprises grinding motor and abrasive grinding wheel, is arranged on grinding subassembly loaded plate, and described grinding subassembly loaded plate is connected with Y-axis positioner loaded plate, which is provided with U-type groove.
Described frame comprises longitudinal vehicle frame and horizontal vehicle frame, respectively be provided with one bottom described longitudinal vehicle frame two ends to walk and clamping device with the car load of subway bend rail joint, described driven unit is all arranged on longitudinal vehicle frame, described horizontal vehicle frame one end is vertically fixed on longitudinal vehicle frame, also be provided with carload walking and clamping device bottom the other end, two car loads arranged with longitudinal bottom of frame are walked and clamping device forms triangular shape and is erected on subway bend rail.
Also comprise switch board, this switch board is connected with driven unit, and is arranged on horizontal vehicle frame.
Compared with prior art, the present invention has the following advantages:
(1) accurately can repair polishing to bend Rail corrugation, traveling retinue device, multiple degrees of freedom grinding tool and the radial misalignments compensation arrangement of this invention equipment can realize repairing the accurate polishing of bend rail abrasion;
(2) bend radius of curvature hour, accurate consideration radial misalignments compensates: owing to being arranged on the U-type groove on grinding subassembly loaded plate and the chute on Y-axis positioner loaded plate, manually can adjusting the angle of grinding subassembly and track and the position in Y direction, can accurately consider that radial misalignments compensates when carrying out the bend polishing compared with small curvature radius;
(3) simple and compact for structure, installation and transportation are convenient: this equipment is the accurate grinding machine of a kind of small-sized decomposable asymmetric choice net track, and 3 can be divided into split section, and every section is no more than 80 kilograms, and can be transported from subway ENTRANCE by manpower, Assembling, is advanced by manual hand;
(4) can polish for assigned address, note abnormalities and solve in time: because this equipment is relative to the portability of existing equipment, for the Rail corrugation of assigned address, particularly Rail corrugation is on longer rail during discrete distribution, must waste time and energy according to rail grinding machine, too increase unnecessary running cost simultaneously;
(5) easy and simple to handle, operating efficiency is high: this equipment adopts control device to realize grinding process and controls, and only need the flow operations according to regulation, the grinding efficiency of this equipment can reach 15 ms/h;
(6) running cost is low, grinding precision is high: because this weight of equipment is light, the mode of manual hand can be adopted in orbit during walking, the electric energy of electrical consumption when running cost is mainly grinding subassembly feed and feed, greatly reduce running cost relative to existing equipment, the grinding precision of this equipment can reach 0.02mm in addition.
Accompanying drawing explanation
Fig. 1 is: elevation of the present invention;
Fig. 2 is: top view of the present invention;
In figure: 1 is longitudinal vehicle frame, 2 is lead screw motor, and 3 is motor supporting base, 4 is T-shaped junction plate, and 5 is Y-axis positioner loaded plate, and 6 is grinding subassembly loaded plate, 7 is grinding subassembly, and 8 for Y-axis is calmly with slide device, and 9 is laser range sensor, 10 is car load traveling and clamping device, 11 is X-direction slide rail, and 12 is X-direction slide block, and 13 is longitudinal vehicle frame, 14 is switch board, and 15 is X-direction screw mandrel and motor.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention is described in detail.
Embodiment
As shown in Fig. 1 ~ 2, a kind of equipment of portable accurate reparation subway bend Rail corrugation, this equipment comprises subway bend the Rail corrugation laser range sensor 9 detected and the grinding subassembly 7 repaired, also comprise and drive grinding subassembly 7 respectively at driven unit and the Control Component of the motion of X-direction, Y direction and Z-direction, and the detachable frame of each building block of described equipment is installed;
Described driven unit comprises X axis driven unit, Y-axis driven unit and Z-axis direction driven unit, wherein:
X axis driven unit comprises X-direction screw mandrel and motor 15, X-direction slide rail 11, X-direction slide block 12, described X-direction slide rail 11 is arranged in frame, described X-direction slide block 12 is arranged on X-direction slide rail 11, described X-direction screw mandrel and motor 15 connect X-direction slide block 12 by a small slide block, and described X-direction screw mandrel and motor 15 drive X-direction slide block 12 to seesaw in the X-axis direction along X-direction slide rail 11;
Y-axis driven unit comprises Y-axis positioner loaded plate 5, Y-axis retinue positioner 8, and described Y-axis retinue positioner 8 is arranged on Y-axis positioner loaded plate 5, and described Y-axis retinue positioner 8 moves along subway bend rail; Described laser range sensor 9 is arranged on Y-axis positioner loaded plate 5, and is positioned at Y-axis retinue positioner 8 dead ahead; Y-axis retinue positioner 8 comprises the cylinder that two are close to track side surfaces.
Z-axis direction driven unit comprises lead screw motor 2, motor supporting base 3, T-shaped junction plate 4, described lead screw motor 2 and T-shaped junction plate 4 are arranged on motor supporting base about 3 both sides respectively, described motor supporting base 3 is arranged on X-direction slide block 12, described Y-axis positioner loaded plate 5 is arranged on T-shaped junction plate 4, T-shaped junction plate 4 is provided with the small slide block be connected with the screw mandrel of lead screw motor 2, and the Y direction slide rail be connected with Y-axis positioner loaded plate 5.Described Y-axis positioner loaded plate 5 is provided with chute, is slidably connected with the Y direction slide rail be arranged on T-shaped junction plate 4; Described Y-axis positioner loaded plate 5 connects a grinding subassembly loaded plate 6, and described grinding subassembly 7 is arranged on grinding subassembly loaded plate 6; Described lead screw motor 2 drives T-shaped junction plate 4 to drive grinding subassembly 7 to move up and down in the Z-axis direction; Described Y-axis retinue positioner 8 drives grinding subassembly 7 to move along the retinue of subway bend rail.
Described grinding subassembly 7 comprises grinding motor and abrasive grinding wheel, is arranged on grinding subassembly loaded plate 6, and described grinding subassembly loaded plate 6 is connected with Y-axis positioner loaded plate 5, which is provided with U-type groove.
Described frame comprises longitudinal vehicle frame 1 and horizontal vehicle frame 13, respectively be provided with one bottom described longitudinal vehicle frame two ends to walk and clamping device 10 with the car load of subway bend rail joint, described driven unit is all arranged on longitudinal vehicle frame 1, described horizontal vehicle frame 13 one end is vertically fixed on longitudinal vehicle frame 1, also be provided with carload walking and clamping device bottom the other end, two car loads arranged with longitudinal bottom of frame are walked and clamping device 10 forms triangular shape and is erected on subway bend rail.Described Control Component is switch board 14, is arranged on horizontal vehicle frame 13.
During use, the equipment of described portable accurate reparation subway bend Rail corrugation is advanced 1.0 meters in orbit, whole equipment is fixed on rail by three car load walkings and clamping device 10, X-direction screw mandrel and motor 15 drive X-direction slide block 12 and Z axis lead screw motor 2 mounted thereto, grinding subassembly 7, Y-axis retinue positioner 8, parts such as laser range sensor 9 grade slide along X-direction slide rail 11, laser range sensor 9 detects the change of 1.1 meters of scope inner orbit height and records data in computer, surveyed 1.1 meters of scope inner heights by software analysis to change, determine grinding total amount and grinding starting point, terminal height.When carrying out the less bend of radius of curvature and polishing, the U-type groove be arranged on grinding subassembly loaded plate 6 can manually adjust grinding angle, the chute be arranged in Y-axis positioner gripper shoe 5 manually can adjust grinding subassembly Y-direction position, until radial misalignments is adjusted, start grinding after having adjusted, the motor be connected with emery wheel when grinding starts is opened, and now emery wheel rotates, Z axis lead screw motor 2 controls feed, and X-axis lead screw motor and motor 15 control feed.Again detect rail top face height by laser range sensor 9 after having ground, pack up hydraulic means railcar after qualified and again move ahead 1.0 meters.
Claims (9)
1. the equipment of a portable accurate reparation subway bend Rail corrugation, it is characterized in that, this equipment comprises the laser range sensor (9) detected subway bend Rail corrugation and the grinding subassembly (7) repaired, also comprise and drive grinding subassembly (7) respectively at the driven unit of X-direction, Y direction and Z-direction motion, and for installing the detachable frame of each building block; Described equipment is folded on subway bend rail, its degree of wear is detected by laser range sensor (9), when wearing and tearing exceed setting value, driven unit drives grinding subassembly (7) to be adjacent to subway bend rail, and moves back and forth reparation wearing and tearing along subway bend rail;
Described driven unit comprises X axis driven unit, Y-axis driven unit and Z-axis direction driven unit, wherein:
X axis driven unit comprises X-direction screw mandrel and motor (15), X-direction slide rail (11), X-direction slide block (12), described X-direction slide rail (11) is arranged in frame, described X-direction slide block (12) is arranged on X-direction slide rail (11), and described X-direction screw mandrel and motor (15) drive X-direction slide block (12) to seesaw in the X-axis direction along X-direction slide rail (11);
Y-axis driven unit comprises Y-axis positioner loaded plate (5), Y-axis retinue positioner (8), described Y-axis retinue positioner (8) is arranged on Y-axis positioner loaded plate (5), and described Y-axis retinue positioner (8) is moved along subway bend rail;
Z-axis direction driven unit comprises lead screw motor (2), motor supporting base (3), T-shaped junction plate (4), described lead screw motor (2) and T-shaped junction plate (4) are arranged on motor supporting base (3) both sides up and down respectively, described motor supporting base (3) is arranged on X-direction slide block (12), described Y-axis positioner loaded plate (5) is arranged on T-shaped junction plate (4), described Y-axis positioner loaded plate (5) connects a grinding subassembly loaded plate (6), described grinding subassembly (7) is arranged on grinding subassembly loaded plate (6), described lead screw motor (2) drives T-shaped junction plate (4) to drive grinding subassembly (7) to move up and down in the Z-axis direction, described Y-axis retinue positioner (8) drives grinding subassembly (7) to move along the retinue of subway bend rail.
2. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 1, it is characterized in that, described laser range sensor (9) is arranged on Y-axis positioner loaded plate (5), and is positioned at Y-axis retinue positioner (8) dead ahead.
3. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 1, is characterized in that, described X-direction screw mandrel and motor (15) connect X-direction slide block (12) by a small slide block.
4. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 1, it is characterized in that, described T-shaped junction plate (4) is provided with the small slide block be connected with the screw mandrel of lead screw motor (2), and the Y direction slide rail be connected with Y-axis positioner loaded plate (5).
5. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 4, it is characterized in that, described Y-axis positioner loaded plate (5) is provided with chute, is slidably connected with the Y direction slide rail be arranged on T-shaped junction plate (4).
6. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 1, is characterized in that, described Y-axis retinue positioner (8) comprises the cylinder that two are close to track side surfaces.
7. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 1, it is characterized in that, described grinding subassembly (7) comprises grinding motor and abrasive grinding wheel, be arranged on grinding subassembly loaded plate (6), described grinding subassembly loaded plate (6) is connected with Y-axis positioner loaded plate (5), which is provided with U-type groove.
8. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 1, it is characterized in that, described frame comprises longitudinal vehicle frame (1) and horizontal vehicle frame (13), respectively be provided with one bottom described longitudinal vehicle frame two ends to walk and clamping device (10) with the car load of subway bend rail joint, described driven unit is all arranged on longitudinal vehicle frame (1), described horizontal vehicle frame (13) one end is vertically fixed on longitudinal vehicle frame (1), also carload walking and clamping device is provided with bottom the other end, two car loads arranged with longitudinal bottom of frame are walked and clamping device (10) forms triangular shape and is erected on subway bend rail.
9. the equipment of a kind of portable accurate reparation subway bend Rail corrugation according to claim 8, it is characterized in that, also comprise switch board (14), this switch board (14) is connected with driven unit, and is arranged on horizontal vehicle frame (13).
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CN201410328403.9A CN104153262B (en) | 2014-07-10 | 2014-07-10 | A kind of equipment of portable accurate reparation subway bend Rail corrugation |
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CN201410328403.9A CN104153262B (en) | 2014-07-10 | 2014-07-10 | A kind of equipment of portable accurate reparation subway bend Rail corrugation |
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---|---|---|---|---|
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Family Cites Families (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CH689643A5 (en) * | 1994-02-18 | 1999-07-30 | Speno International | An installation for reprofiling the rails of a railway. |
CN2535436Y (en) * | 2002-01-18 | 2003-02-12 | 张轶华 | Steel-rail rail-road switch grinder |
US9073167B2 (en) * | 2011-10-07 | 2015-07-07 | Bombardier Transportation Gmbh | Precision rail profiling device for railway turnouts and crossings |
CN102535279B (en) * | 2012-01-13 | 2014-04-02 | 西南交通大学 | Numerical control fine-grinding quality control method of rail welding joint |
CN203007757U (en) * | 2012-12-18 | 2013-06-19 | 北京二七轨道交通装备有限责任公司 | Grinding vehicle laser positioning device and grinding vehicle |
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Effective date of registration: 20230526 Address after: No. 7500 Chunchun Road, Minhang District, Shanghai, 201101 Patentee after: HUAHAI ENGINEERING Co.,Ltd. OF CREC SHANGHAI Address before: 201620 No. 333, Longteng Road, Shanghai, Songjiang District Patentee before: SHANGHAI University OF ENGINEERING SCIENCE |